capacitive bandpass filter
v1 1 0 dc 0 ac 1 ; sin
r1 1 2 200
c1 2 0 5u
c2 2 3 1u
rload 3 0 1k
.ac lin 50 20 1000
.plot ac v(3)
.control
run
plot db(v(3)) xlog xlimit 10 1000
.endc
.end